Advertise on DISCO3.CO.UK
Forum · Gallery · Wiki · Shop · Sponsors
DISCO3.CO.UK > Technical (D4)

Cross drilled discs rotation
Post Reply  Down to end
Page 1 of 1
charlietortoise
 


Member Since: 29 Oct 2011
Location: Staffordshire
Posts: 502

2010 Discovery 4 3.0 TDV6 HSE Auto Barolo BlackDiscovery 4
Cross drilled discs rotation

Hi there, I have had some vented and cross drilled brake discs fitted. Stopping power is excellent BUT which direction should they be fitted in. Does the slot on the disc face the front or the rear

Front off side.



Rear off side


Originally both were in the direction of the rears, now due to a warranty issue of brake wobble I have had the fronts replaced, they have now been installed with the slot to the rear after discussion with my indi. Question, should I have the rears swapped over as well.

The Subaru in this picture has them set like my rear discs
 Discovery 4 3.0 HSE 2010 year. I like it a lot. Now with winch 😂 

Last edited by charlietortoise on 19th Apr 2020 3:11 pm. Edited 3 times in total 
Post #213938719th Apr 2020 3:00 pm
View user's profile Send private message View poster's gallery Reply with quote
gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Well I didn’t know that , every day Is a school day

https://www.zeckhausen.com/catalog/index.php?cPath=6446_6515

Apologises as I know that’s not much help but was just intrigued Bow down
   
Post #213939019th Apr 2020 3:07 pm
View user's profile Send private message View poster's gallery Reply with quote
Kilovolt
 


Member Since: 29 Jun 2015
Location: South Derbyshire
Posts: 1017

United Kingdom 2013 Discovery 4 3.0 SDV6 Commercial XS Auto Baltic BlueDiscovery 4

My AP Racing discs are mounted this way.

Outer edge reaching the brake pad first.



A very simple way to understand the drawing.

Hope that helps.

Cheers Thumbs Up
 "Track day running - Don't put your foot back on the accelerator until your absolutely sure you don't have to take it off again"

Current Ride: D4 XS Commercial Baltic Blue SDV6 fully loaded with heated everything Smile
Track Days: BMW E36 M3 Evolution MY 1996 (3.2 Litre 377 BHP sat in 1,250 Kgs of car, with a pro safety cage and some serious braking power) Smile 
 
Post #213940619th Apr 2020 3:54 pm
View user's profile Send private message View poster's gallery Reply with quote
gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Thumbs Up Bow down
   
Post #213940719th Apr 2020 3:56 pm
View user's profile Send private message View poster's gallery Reply with quote
charlietortoise
 


Member Since: 29 Oct 2011
Location: Staffordshire
Posts: 502

2010 Discovery 4 3.0 TDV6 HSE Auto Barolo BlackDiscovery 4
Cheers

Spooky, thats the way they were fitted first time around. Thanks.
 Discovery 4 3.0 HSE 2010 year. I like it a lot. Now with winch 😂  
Post #213940919th Apr 2020 3:59 pm
View user's profile Send private message View poster's gallery Reply with quote
Stevepd
 


Member Since: 06 Mar 2018
Location: Wiltshire
Posts: 390

United Kingdom 

Great video and link Thumbs Up . Everyday can be a school day Whistle
 visiting from www.rrsport.co.uk  
Post #213961420th Apr 2020 6:33 am
View user's profile Send private message View poster's gallery Reply with quote
M3bobby
 


Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857

United Kingdom 

I always thought they were mounted so that the grooves through the dust outwards so the opposite of the AP diagram.
 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete) 
 
Post #213962320th Apr 2020 7:28 am
View user's profile Send private message View poster's gallery Reply with quote
nigethecat
 


Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4138

Ukraine 2016 Discovery 4 3.0 SDV6 Commercial XS Auto Corris GreyDiscovery 4

Agreed, I think everyone who fits brakes should watch/read this... so simple yet so important.... with Porsche I would think the the big “L” & “R” on the discs would help but obviously not Laughing
 I want to see the sweets before I get into your windowless van... I'm not stupid!

Corris Grey D4 Commercial SE 2016
Zermatt Sliver 2007 D3 SE manual (gone)
Indus Silver D4 HSE 2015 (gone)
Bonatti Grey D3 HSE 2006 (gone)
White D3 S (LHD) 2007 (gone)
Firenze Red D4 HSE 2014 (gone)
Black RRS 3.6TDV8 2008 (gone)
Rusty Green Defender 110 1997 (gone)
Black FL2 HSE 2013 (gone) 
 
Post #213962420th Apr 2020 7:28 am
View user's profile Send private message View poster's gallery Reply with quote
M3bobby
 


Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857

United Kingdom 

I’ve just read an article that states you can have the groove leaning forward or backward so shouldn’t be used as the deciding factor of which side the disc is fitted. Any direction cooling vanes are the deciding g factor and should lean rearwards. If the vanes are straight then the direction of the groove is personal choice.

https://www.zeckhausen.com/catalog/index.php?cPath=6446_6515
 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete) 
 
Post #213963720th Apr 2020 8:06 am
View user's profile Send private message View poster's gallery Reply with quote
Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

M3bobby wrote:
I always thought they were mounted so that the grooves through the dust outwards so the opposite of the AP diagram.


Thats how I fitted mine. Dust gets drawn away from the hub, and towards the outside of the disc, where it can be dispersed

I read that fitting them facing forward promoted the chances of brake squeal...
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #213969820th Apr 2020 10:34 am
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
charlietortoise
 


Member Since: 29 Oct 2011
Location: Staffordshire
Posts: 502

2010 Discovery 4 3.0 TDV6 HSE Auto Barolo BlackDiscovery 4
Discs

Looks like I am ok then as the vents inside are just straight. I may reverse the rears for cosmetic looks and as suggested to throw the dust out.

Thanks for all the help.
 Discovery 4 3.0 HSE 2010 year. I like it a lot. Now with winch 😂  
Post #213981420th Apr 2020 4:38 pm
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 1 of 1
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO3.CO.UK is independent and not affiliated to Land Rover.
Switch to Mobile Site